Shuttle for looms.



c.& is. BBUN. SHUTTLE Fon LOOMS.

(No Model.)

(Application filed July 18, 1899.)

Patented May I, I900:

Qwuewtom/ No. 648,547. Patented May I, I900. C. &. G. BBUN.

SHUTTLE FOR LOOMS.

(Application filed July 18, 1899.) B 2 Sheets-Sheet g,

fou-M/ mewtow 114E NORRIS PEYERS co. PnoTo-uma, vusmnumn. n, c.

UNITED STATES PATE T @FFICE.

CAMILLE BRUN AND. GUSTAVE BRUN, or s'r. ETIENNE, FRANCE.

SHUTTLE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 648,547, dated. May 1, 1900.

Application filed l'uly 18, 1899. Serial No. 724,282. (No model.)

To all whom it may concern.-

Be it known that we, CAMILLE BRUN and GUSTAVE BRUN, citizens of the Republic of France, residing at St. Etienne, in the Department of Loire, France, have invented certain new and useful Improvements in and Relating to the Shuttles and Shuttle-Bobbins of Looms of Any Kind; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to the shuttles and shuttle-bobbins of looms of any kind; and it consists of an improved system of winding the spool or bobbin of the shuttle and of improved operative parts in and connected with the said shuttle and lay of the loom, whereby the stoppages of the loom having one or more shuttles and the replacement of a full threaded shuttle for any empty shuttle are eifected before the complete emptying of the thread cop or spool of the shuttle, the transfer being eifected at the end only of any shoot of the Weft-thread. Theimproved system,therefore, depends, essentially, upon the principle of the incomplete unwinding of the weft-thread in the shuttle during work and upon the consequent resulting movements set into operation by the unwinding of the thread from the shuttle spool or cop before the latter is completely unwound, as will be hereinafter more fully described. This system of control is quite independent of the control of the usual weft-fork, which acts in the well-known manner upon any accidental breaking of the weftthread. One of the greatest advantages of this system is the avoidance of partly-missing or short weft-threads in the fabric.

It is well known that when the usual weftfork stops the loom by reason of the complete unwinding of the shuttle-thread the end of the last shoot-thread stops in the middle or body of the fabricthat is, leaves an incomplete shoot-necessitating a repair or artificially knotted or added thread to complete the shoot, which in fine fabrics is a serious disadvantage and is in all cases a cause of loss of time.

In order that this invention may be the better understood, a practical application of the same in the operation of any loom is illus trated herewith and will now be particularly described.

Figure 1 is a side elevation of a cop or bobbin. Fig. 1 is an end view of the base of the same. Fig. 2 is a side elevation of the cop-spindle. Fig. 2 is an elevation of the spindle from the under side. Fig. 3 is a side elevation of the shuttle. Fig. 4 is a similar View showing the commencement of the winding on the cop. Fig. 4 is a View of the under side of the shuttle. Fig. 5 is a side elevation, on a smaller scale, showing the shuttle and its associated operating mechanism applied to the shuttle-box and lay of a loom.

Fig. 6 is a top plan view of the same.

Fig. 1 shows in side elevation a bobbin or cop F in wood, cardboard, or other material detached, which has the peculiarity of a longitudinal slotf, pierced for a certain length from the spindle-hole through the body of the cop. Fig. 1 is an end view of the base of the said cop, showing a small hole 0 in the said base to receive a pin or tongue 25, fixed upon the butt E of the cop-spindle B, Figs. 2 and 2, which has for its object the holding of the cop F in a fixed position upon the spindle B during weaving.

Fig. 2 is a side elevation of the spindle B, mounted on a butt or base E. The spindle is furnished with a small lateral spring b,of suitable form, fixed at its upper end to the spindle and free at its lower extremity toward the butt or base of the spindle, playing outward through the slot f in the cop. Fig. 2 represents an under view of the said spindle.

The essential idea of this improved system is the special winding of the shuttle cop or spool F with the first spiral of weft-thread from a to a only, Fig. 4.. These first layers or spirals of thread have a length equivalent, say, to three shoots of the fabric, and afterward the winding of the cop becomes normal from s to sthat is, from top to bottom of the cop F as is usual, Fig. 3, confining the spring b of the cop tightly in its slot f by the surrounding thread. The cop F thus specially wound is placed upon the spindle Bin a definite and fixed position by the engagement of the pin or tongue t in the hole 0, and

2 time? the spindle B is placed in position, as in Figs. 3 and 4, in the shuttle. The weft-thread unwinds itself in the usual way until nearly the end of the thread, and the spring I) presses.

the shuttle. The outer free end of this spring L is furnished with a pin Z, passing through a corresponding hole in the side of the shuttle, and projects upon the side outside the shuttle. On'the other hand, while the cop F is completely covered with the thread, the

tle, as in Fig. 3.

invention added thereto.

ersing a vertical slot in the cheek of the beam this lever A is connected to a vertical connecting-rod M, this latter being pivoted on a lever P, pivoted at 19 upon the lay and hav- During normal weavingthat is to say, while the first part i of the weft-thread is unwinding from the shuttle-cop and until the liberation of the spring 'bthe lay passes clear above the tappet Q. I

mg a counterweight P.

So soon as the spring 17 is liberated from the cop F it pushes the stop-pin Z beyond the shuti The weaving continues until the return of the shuttle'to its box, when the side of the J pin Z mounts upon the inclined face of the le- 1 ver A and depresses it, finally resting in the 1 The lever A by its depression pushes the rod M downward and throws the tle.

recess A.

end of the lever P below the lower edge of the driver, so as to strike the tappet Q.

sequent movement upon the tappet'Q may be utilized in any convenient manner either to The con stopthe loomor'fto put in action known mecli anism, for the replacement of a full shuttle for the nearly-empty one either in a loom of one or many shuttles.

It is obvious that the usual weft-fork operating by an accidentally-broken thread is not interfered with and that the results of our system of control are obtained beforethe com-- plete exhaustion of the weft-thread. Moreover, the replacement of a full shuttle is al ways after completion of a shoot, avoiding short and partial shoots and the loss of time and damage to fine work resulting from such short shoots or from missing shoots resulting from the running out of the weft-thread from the shuttle. It is obvious also that this im proved system of control is applicable to all sorts and types of looms and for the weaving of any material. I

Having now particularly described and ascertained the nature of the said invention and Figs. 5 and 6 show in elevation and plan the a driver of any ordinary loom with a shuttle "in situ and the novel control appliances of this i In the interior of 1 p the shuttle-box, at the side of the breast-beam, shuttle, a pin on the other end of said spring a lever A is fitted pivotally on axis A, presenting at its free extremity an inclined-plane f or wedge face. "By means of a trunnion travin what manner the same is to be performed, we declare that what we claim is= 1. The combination with a shuttle, of a spring secured at one end to the inside of the spindle having a spring adapted to be compressed by the thread, a spring-mounted pin in line with-said spring, a cam-surfaced lever on the lay, adapted to be wiped by said pin when forced outwardly, a counterweighted lever connected with the cam-surfaced lever, and a tappet arranged to be engaged by the counterweighted lever when depressed.

In testimony whereof we affix our signatures in presence of two witnesses. 7

OAMILLE BRUN. GUSTAVE BRUN. Witnesses:

GIRODET JEMIR, BENOIT SANTIER. 

